AutoCAD Coordinates System

by Rezz on November 4, 2010

There is only 3 AutoCAD coordinates system you should know. Absolute coordinates, Relative coordinates and Polar coordinates.

Absolute Coordinates
All input points specify in your drawing using standard Cartesian coordinates x and y. Using absolute coordinate, points entered by typing x,y [Enter]

Relative Coordinates

After first points entered, your next points can be entered by specifying the next coordinate compare/relative from the first points. The relative coordinate started with symbol “@” tell AutoCAD it was a relative coordinates. Using relative coordinate, points entered by typing @x,y [Enter]

Polar Coordinates
Polar coordinates used when you need to draw the next points at specify angle. Polar coordinates system in AutoCAD specifies distance length at which angle. Using polar coordinate, points entered by typing @distance<angle [Enter]

Example of AutoCAD coordinates usage;

autocad-tutorials-absolute-coordinates-system

Drawing 2 lines as figure shown with;

Absolute coordinates
autocad-tutorials-absolute-coordinates-system
Enter LINE command: L [Enter]
Start line at point A: 0,0 [Enter]
End first line at point B: 2,2 [Enter]
End of second line at point C: 2,3 [Enter]

Relative coordinates
autocad-tutorials-relative-coordinates-system
Enter LINE command: L [Enter]
Start line at point A: 0,0 [Enter]
End first line at point B: @2,2 [Enter]
End of second line at point C: @0,1 [Enter]

Polar coordinates
autocad-tutorials-polar-coordinates-system
Enter LINE command: L [Enter]
Start line at point A: 0,0 [Enter]
End first line at point B: @2.828<45 [Enter]
End of second line at point C: @1<90 [Enter]

{ 10 comments… read them below or add one }

bejaoui fathi January 7, 2011 at 7:45 pm

merci pour ce site je le cherche depuis longtemps

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admin January 12, 2011 at 6:34 pm

merci. dites vos amis au sujet de cet ok de site Web.

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Rakesh May 26, 2011 at 4:23 am

Nice tutorial …..

Please define in some more detail.

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Rakesh Kumar Chaudhary June 13, 2011 at 12:08 pm

this lession is very good .

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Rakesh Kumar Chaudhary June 13, 2011 at 12:10 pm

I have completed this chapter & learn a lot about co-ordinate .

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rajasekar July 11, 2011 at 7:54 am

excellent tutorial

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Charlie Tang August 15, 2011 at 4:43 am

I like it. because it is easy to understand and makes learning smoothly.

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Shehab September 2, 2011 at 12:49 pm

GOD bless you…

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nuhsin raza September 7, 2011 at 12:54 pm

I have cleared my concepts about coordinates and translated into Urdu and posted in my site .I also book marked for future translation.Thanks a lot brother

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kamran September 25, 2011 at 7:03 am

nice site, i like it. Its useful 4 bignner’s.

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